On pulsar-driven mass ejection in low-mass X-ray binaries |
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| Authors: | Lei Fu Xiang-Dong Li |
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| Institution: | Lei Fu and Xiang-Dong Li 1 Department of Astronomy,Nanjing University,Nanjing 210093,China,2 Key Laboratory of Modern Astronomy and Astrophysics,Ministry of Education |
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| Abstract: | There is accumulating evidence for mass ejection in low-mass X-ray binaries(LMXBs)driven by radio pulsar activity during X-ray quiescence.We consider the condition for mass ejection by comparing the radiation pressure from a millisecond pulsar,and the gas pressure at the inner Lagrange point or at the surrounding accretion disk.We calculate the critical spin period of the pulsar below which mass ejection is allowed.Combining with the evolution of the mass transfer rate,we present constraints on the orbital ... |
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